0001-HACK.patch

From a083dfc11eb45637ffd57813cc47d0fc6b2b9766 Mon Sep 17 00:00:00 2001
From: Christian Marangi <ansuelsmth@gmail.com>
Date: Sat, 11 May 2024 16:18:27 +0200
Subject: [PATCH] HACK

---
 drivers/net/dsa/qca/qca8k-8xxx.c | 58 ++++++++++++++++++++++++++------
 1 file changed, 47 insertions(+), 11 deletions(-)

--- a/drivers/net/dsa/qca/qca8k-8xxx.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -508,9 +508,27 @@ qca8k_bulk_read(void *ctx, const void *r
 	struct qca8k_priv *priv = ctx;
 	u32 reg = *(u16 *)reg_buf;
 
-	if (priv->mgmt_master &&
-	    !qca8k_read_eth(priv, reg, val_buf, val_len))
+	if (priv->mgmt_master) {
+		u32 *val_buf2;
+
+		qca8k_read_eth(priv, reg, val_buf, val_len);
+
+		val_buf2 = kmalloc(val_len, GFP_KERNEL);
+		for (i = 0; i < count; i++, reg += sizeof(u32)) {
+			ret = qca8k_read_mii(priv, reg, val_buf2 + i);
+			if (ret < 0)
+				return ret;
+		}
+
+		reg = *(u16 *)reg_buf;
+		for (i = 0; i < count; i++, reg += sizeof(u32))
+			if (val_buf[i] != val_buf2[i])
+				pr_info("REG %x read diff MGMT_ETH: %x MII: %x\n", reg, val_buf[i], val_buf2[i]);
+
+		kfree(val_buf2);
+
 		return 0;
+	}
 
 	/* loop count times and increment reg of 4 */
 	for (i = 0; i < count; i++, reg += sizeof(u32)) {
@@ -531,9 +549,27 @@ qca8k_bulk_gather_write(void *ctx, const
 	u32 reg = *(u16 *)reg_buf;
 	u32 *val = (u32 *)val_buf;
 
-	if (priv->mgmt_master &&
-	    !qca8k_write_eth(priv, reg, val, val_len))
+	if (priv->mgmt_master) {
+		u32 *val_buf2;
+
+		qca8k_write_eth(priv, reg, val, val_len);
+
+		val_buf2 = kmalloc(val_len, GFP_KERNEL);
+		for (i = 0; i < count; i++, reg += sizeof(u32)) {
+			ret = qca8k_read_mii(priv, reg, val_buf2 + i);
+			if (ret < 0)
+				return ret;
+		}
+
+		reg = *(u16 *)reg_buf;
+		for (i = 0; i < count; i++, reg += sizeof(u32))
+			if (val_buf[i] != val_buf2[i])
+				pr_info("REG %x write diff MGMT_ETH: %x MII: %x\n", reg, val_buf[i], val_buf2[i]);
+
+		kfree(val_buf2);
+
 		return 0;
+	}
 
 	/* loop count times, increment reg of 4 and increment val ptr to
 	 * the next value
@@ -900,10 +936,10 @@ qca8k_internal_mdio_write(struct mii_bus
 	struct qca8k_priv *priv = slave_bus->priv;
 	int ret;
 
-	/* Use mdio Ethernet when available, fallback to legacy one on error */
-	ret = qca8k_phy_eth_command(priv, false, phy, regnum, data);
-	if (!ret)
-		return 0;
+	// /* Use mdio Ethernet when available, fallback to legacy one on error */
+	// ret = qca8k_phy_eth_command(priv, false, phy, regnum, data);
+	// if (!ret)
+	// 	return 0;
 
 	return qca8k_mdio_write(priv, phy, regnum, data);
 }
@@ -915,9 +951,9 @@ qca8k_internal_mdio_read(struct mii_bus
 	int ret;
 
 	/* Use mdio Ethernet when available, fallback to legacy one on error */
-	ret = qca8k_phy_eth_command(priv, true, phy, regnum, 0);
-	if (ret >= 0)
-		return ret;
+	// ret = qca8k_phy_eth_command(priv, true, phy, regnum, 0);
+	// if (ret >= 0)
+	// 	return ret;
 
 	ret = qca8k_mdio_read(priv, phy, regnum);